A continue blinking LED, often means that a DC voltage is detected at the output terminals, so the safety of the amp prevents that this DC voltage is applied to your speakers. If power transistors have been damaged, usually fuses will be blown. If no fuse is blown, the reason of this DC can have a lot of causes, such as bad Elko’s (I don't mean the power supply Elko’s in this case), bad diodes, resistors or transistors. Without a service manual it is very difficult to find the cause. Sometimes bad contacts are the cause. E.g. everything which is mounted on a cooling plate can press his connections through the solder because of the expansion coefficient. Modern amplifiers often have microprocessors in their start-up circuit. If something is defect with these components, you must replace the whole PCB, because without special equipment it is impossible to replace microprocessors.

check power transistors and then check the capacitors in the power supply...if one is broken the system shuts down automatically to protect circuits because it detects some short circuit or overheat.

Denon 3808 no sound or volume from digital sources. Thus; no on screen menu. Bad hdmi board? Took surge through hdmi cable during recent Texas storm. Any suggestions or diagnostic advice. Network/internet working good as well as front display panel. Tried factory reset and display flashes; so it appears microprocessor good too.

good friend a chance question do you know what the transformer output voltages are?

Hello, i have a similar problem, it shuts down automatically. But mine has a twist, it shuts down when my volume goes up above 50. Then i smell burnt plastic/rubber in my room. I check my unit and noticed a yellow cover part has orange bubbles. I tried using it again this time putting my room temperature to a colder setting and so far it didnt shut down and no burnt smell. Im just adraid that if i use my unit without having it checked i might add damage to it. Mine is DENON AVR-S720W. Please help me too.

Have a Sony Bravia T.V and Denon AVR1609 Need help ! I read that they're not comparable It works for awhile then it starts to click back and forth ex Dolby TV -Surround sound T>V cable Flick etc etc.Now I don't have sound in the speakers at all before they were coming on and off They're not communicating together

I have the Denon AVR 1908 when the volume gets to around 13 or so it shuts off the entire unit. And not only that it does not seem to be as loud as it has been in the past also after it shuts off, the power light begins to flash red. In order to turn it back on I just have to push the power button twice and it will come back on.

how to connect denon avr 1410 with samsung smart tv.too hdmi the connection..what settings should be

I have a same problem with my age 688 the collector of out transistor 52v but the negative side the voltage are running.I’m can’t measure where the mul function the diode or capacitor. Help!

Currently troubleshooting a Denon AVR-600. If you have any leads, I love to know. Thank u

check your regulator ic's in the power supply . There's a video on youtube of this and how to change them . 1.00 part too .

Wish I could send you my avr, it's a beast but it's got a humming sound next to the power cord. Speakers make a weird noise, only one channel sounds regular. Only in mute does the sound go away.

The +/- 15v regulator or output transistors

Measure +15v and -15V when it starts. if one missing you should replace those 7815 for missing+15v or 7915 for -15V. Good luck!

@SimonHaestoe

6 ай бұрын

Sorry, absolutely noob here but what do you mean replace "7815" or 7915? What are those?

where do I connect an equalizer with an amplifier avr 1609 thank you

During an power it performs a self-test power amplifiers, examines the problem of resistance on all models, the AVR 1611 is my damaged section front right channel and exactly C3964 after replacing the LED is green

@angieyetter8722

7 жыл бұрын

throw the shit out BUY KENWOOD RECEIVER

what about the avr-2160..can you help me..i have the same problem

I hv same problm with my Pioneer VSX 321 receiver. atfirst I changed the regulator IC 7915 since the negative voltage was missing. lastly the receiver started with power.

It is near the transformer the sub power supply the medium sized heatsink one of the voltage regulators have gone bad.

Can you help pls. My old demon 1603 prolific and 5ch stereo not working

hi Where From We Get Circuit Diagram ??

Accidently i use 220v on my sherwood av5030 And it blown.. how to repair

I have the same problem in AVR model 1312XP, and do not know what to do .... Someone has solved this problem??

The same with a AVR1910 ! the reset is not as shown here, but use the power button at the right of the st by button then as show in this movie, then the flashing display goes on, but no solution for that? So what is the cause?

@guillaumeheredia6812

3 жыл бұрын

Did you find any solution for the avr 1910? There is no +/-15v but +/-12v and mine are working well.

Can anyone add a link to pics or video showing the exact parts or repair???

More Common Problem In Denon Receiver Avr Causing it to go into DC Protection mode is Wrong Bias on Output Stage transistors . Or Shorted output transistors. open Biasing resistors or Output resistors or faulty pre amplifier stage transistors. Some times protection Circuit fault detection transistor can be faulty but is rare problem. isolate eliminate speaker or wire shorts first before popping the case of AVR if its ASO protection . Thermal protection can be caused by using less than 6 ohm speaker at loud volumes and running amp Hot. Adjust bias after replacing power transistor 8mv +- 0.5mv. adjustment by turning preset on each channel.

Check your audio output transistors for shorts, "collector to emitter" Next! check the positive regulator for 15 volts output, same with the negative 15 volts.

@donttalktome-imacat2106

2 жыл бұрын

hi.... do you know if the voltage regulator is a common fault with these??

Did you solve the problem? If not let me know, i will give you idea to solve the problem!

I have AVR2307. After years of service I decided to open the cover & blow it using hand held blower. After Puting the cover back, it refused to work for several hrs - the display was ok, functions were ok, every other thing was ok, but no speaker o/p. I later long pressed speaker A B , switched off power then voila. It started working again

I have the DRA-700AE DAB same problem. If you ever find the solution let me know and I will likewise

my avr 1312 some time turn on and then off maybe for 1-3 time and then turn on perfect can somenone help me with this problem

Another heavy amplifier, there is a built-in fuse which is difficult to get to in that amplifier, actually mine was caked in thick dust and dirt,and in truth I needed the remote, and not having a fan is complete bollocks as it needs ir

hi my receiver shutts off the sound and the digital lights only only thee reset lights works !!! cant you help me up please ?? tkx

Me too, same problem!

is that the same that goes for the HTR 6230 MODELS as well

i am experiencing the same with my avr 1909

The Flux Compasitor is mixing with the Anti Matter. Adjust the Warp Drive with a M-5 tricorder to show ALL Clear. Hope this Helps 🖖

@thorodinson7739

Жыл бұрын

Idiot

@MadeMyBONES

Жыл бұрын

@@thorodinson7739 Seek immediate mental health 💩 head.

I just encountered this issue today with my AVR-1709. System was playing music, then went off midway. Now I get the same red power button flashing. HELP!

@TheSeas721

3 жыл бұрын

Hi just curious I'm having the same problem with the same model. Did you ever get it fixed and what was your receivers problem? Would appreciate any help you can give!

@michaelfischer6984

2 жыл бұрын

1709 same problem plays for 30-60 sec then goes into protection.Initially played for 5-10 sec. Will not reset or display protection events.

It is power transistors on channel outputs, looks like you have a short there or at least one of them, that is why power protection module/circuit is switches of the amp. Take DVM and measure each power transistors legs, when found unsolder it ( they are connected to big heat sink you cant miss them - also for the info i think is 1 transitory per channel and they are work in pairs), power back the amp and check (quite common issue on Denon's I have repaired ) let me know

@m7dtbh580

3 ай бұрын

I checked and found no failures in mine, all of them are reading correctly but it's behaving exactly how he showed in the video Today it just turned after the check for a minute and tripped later

Make sure to run a fan on them when playing for long periods of time....

My yahama rx v383 receiver red light flashing

How to reset protect mode denon avr1603

For AVR1609 please check the IN4007 diodes in the Power Board. 2 must be fail. What i've experienced on the customer received that i had. 2 on 5 is blown.

@my_love_never_breaks_on_pk

6 жыл бұрын

I am facing the problem

@my_love_never_breaks_on_pk

6 жыл бұрын

In my Denon avr 1312 when I switch on my amp after the display came the amp automatically go into standby after pressing microprocessor reset amp is working fine.every time iam facing this problem.when iam switch on the amp.what should I have to do.This is my WhatsApp number +919493921849.will u give a solution for that

@tibo7434

5 жыл бұрын

Bonjour Stéphane, j’ai un avr 1603 qui me fait pareil, ça clignote à l’allumage et ça s’éteint au bout de 4 ou 5sec, je ne sais pas trop où regarder, pouvez vous m’indiquer la zone à regarder svp? Merci

Same problem with my denon AVR-X1700H its still under guarantee but its going to cost me 40£ to return. Why could this happen had 2 jbl stage A190 floor standing speakers, lost binding post on 1 my son, so was only using 1 speaker is that why im not sure maybe someone will know

Gud am sir how about red light my denon avr-1509

Replace the power regulator transistors on heat sink behind transformer.

its the little transistor on the one of the two little heat sinks believe me....

i had a same problem and the cause was a negative regulator of 15v

Break out your Fluke meter get a schematic of the unit let's start checking voltages are all the voltages are correct then going to your main audio output app section and check out final output transistors make sure that those are not shorted out because that can cause you to go into protection like it's going into cuz that's basically what's happening to it I ain't going right into the red light of death which automatically usually means that there's a short somewhere nine times out of 10 it's usually in the final output have the app section but it could also be in the power supply so that's why you have to check to make sure that you have the right voltage is coming out of your power supply so you have to start there first and make sure you have the right voltage is going to where you need to be going to check out the regulated supplies coming from your power supply and make sure what you need your schematic and you can get them very easily through Google and quite a few of the forums you can get them and a lot of times you can get schematics from the company themselves you can probably get them online sometimes they charge you sometimes they don't depend on how old the universe is but you should be able to check give me a listing of all the judges coming out of your power supply and you just check it be grounded to the e-ticket black lady grounded to this power supply and you go in there and you check how many cables see what the outputs are if your output you're not with a supposed to be by more than 2% then you have a problem and you have to find out if there's a transistor a regulator that is faulty you follow it back you test that transition around and you just replace it could also be a burnt-out resistor you just have to follow it down the line it's time-consuming and sometimes tedious so I suggested you put on some music that you like to listen to put on a set of headphones and made me a some sort of music devices July to listen to and just sit there listening to music and tracing the lines now cuz it could take you a couple of hours to do it but don't give up it's better than throwing it out and spending for $500 for no one or having somebody telling you they going to charge you $300 to rebuild it when they already know nine times out of 10 what the problem is because they fixed it before and it's only going to be about 15 to $20 in parts and I know exactly where the problem is so they can go Zoom right in and fix the part and they've only taken 25-30 minutes do the job and they're charging you $223 to do the job so take your time sit back relax use the meter the proper way to slowly Trace everything out I used to do it as a job I do it as a hobby now I just do vintage equipment I love to repair vintage old stuff old cassette decks old receivers especially tube I love to bring the old stuff back to life it's a lot of fun I also make quite a bit of money out of that because I buy the stuff at garage sales I get it I got people that call me up that tell me they have a lot of old stereo equipment that's not working they want to get rid of it they sell it to me real cheap so I sit relax and I take it apart that's a good hobby and it's a hobby that pays for itself

Sir DENON AVR-X1100W Sudden off please help us

Dude. Try pressing the power button with Input and speaker buttons at the same time. Not the Standby button.

I have Ordered the Parts that Watcher3223 suggested and will put them in when they arrive. I will let ya know what happens.. Also watched Denon AVR788 AVR-788 AVR 788 Blinking Red Light Fix, Denon AVR788 AVR-788 AVR 788 Blinking Red Light Fix by norcal715..

My receiver has the same problem it turned out that one of the voltage regulators has failed so I replaced it and started to work again. Let me know if this helps your welcome😃

@martinangermusic5671

9 жыл бұрын

Hey there! how did you find this out? and where are those regulators?

@Looktowardsthesky

8 жыл бұрын

how much did that cost..mine just literally started doing this..it just happened now and it's pissing me off cause i just used the damn thing yesterday

Yo tengo una y me está dando el mismo problema k devo aser ayúdame

Bonjour Hello Je vois que vous vous y connaissez en électronique. J'ai un problème avec un magnétoscope Samsung 600 .

no don't believe in reading the owners manual to reset the micro processor or looking for a PDF online but ..After reset it does work currently once again how long unknown..

@jamescagney4372

10 жыл бұрын

Silly 4 ohm RCA's have prompted this AVR to security shutdown , the 1312 is not identical to the above but displays the same security warning..etc

But stereo and external working

azul Maré,o meu Denon Avr1609,tudo funciona normal,so não tem saída para as caixas,abraço ,desde já agradeço

@alexbassmusic33

Жыл бұрын

boa noite, vc saberia me informar o ano de fabricação do avr- 1609, e se vale a pena comprar um hoje em 2022?

I might be wrong about that I'm sorry if I am.

You did the reset wrong! Shut off unit completely by pulling the plug or using the power button, then hold speaker a+b then power on. U did it on standby. Thats not working. Trying to repair my AVR-1905 then found video.

Hi reset to factory default First you have to push the two buttons input and speakers and next push the litle on/off button about 10 sec.

@hugoaguilar5471

6 жыл бұрын

carlos silva tengo un recibidor pero no me da sonido aparece Mute y se apaga que puedo aser

@hugoaguilar5471

6 жыл бұрын

carlos silva que me recomienda

I have the same problem..

I am almost 100% sure @watcher3223 is correct, I my receiver (AVR-789) just stopped powering on yesterday (right before I was going to watch a movie with some friends) I have taken my receiver apart and tested the voltage output of the +15v and -15v and the +15 rail was at +5.67v while the -15v rail was at -14.96v (which is fine) but at the suggestion of @Watcher3223 I am going to replace both voltage regulators. I will let you guys know when I get them replaced if it has fixed my problem.

@toolzgalore2

10 жыл бұрын

Nevermind I figured it out, the replacement -15 voltage regulator I bought was not isolated and the input is also the case. So if you read below you will see that when I swapped the +15v regulator out that fixed my issue. Ok, replaced those two voltage regulators and I thought I received a bad one at first then powered the receiver on not having the regulator attached to the heat sync and it powered on. I checked voltage on the heatsink itself and it appears the heatsink has -22 volts on it when the receiver is powered on. Not quite sure why it does, but it does and that is (on top of the regulator needing to be replaced) why mine is currently not working. Any suggestions as to why I have -22 volts on the heatsink would be awesome!

@videogamepolak0

10 жыл бұрын

are they the same parts for most models? mine is a avr 589 and its doing this..never over drove it or anything...

I solved it by changing the rectifier bridge diodes of the protection system. There was one party and you couldn't see that it was broken.

I have same problem. Piece of crap. Never buy Denon

@galiekniamut3837

3 жыл бұрын

Exactly

And what ?

Gud am sir i have a denon avr-1509 red light only

Deves de checar los transistores uno por uno que no esten encorto lo mas probable es que tenga varios quemados solo tienes que remplazarlos y ya queda

@fernandoaranda7322

10 ай бұрын

??

I have the same problem with my denon avr 1612.

@HectorRobertoBarbosa

5 жыл бұрын

I have the same problem with my denon avr 1612. Accidently her use 220v.

Gracias

Way all Denon, Marantz has some problems? You see a broken Sony or Yamaha one of 1000... this things costs a ton of money 😮

Same problem on my avr 5600

Similar issue on the newer Denon AVR X2400H. Seems we all have this issue as this video has over 200k views. Denon quality really is trash.

Sir my problem

I have the same unit, same problem

Sir sem problem

Mine got same problem denon AVR-X1600H

We do but it is a AVR-1312

Search for this video "Denon AVR788 AVR-788 AVR 788 Blinking Red Light Fix"

i tryed to receet and did'nt work

@my_love_never_breaks_on_pk

5 жыл бұрын

Dany it will work I will help

@my_love_never_breaks_on_pk

5 жыл бұрын

Try to ping me on my WhatsApp +919493921849

I know how to fix it, hold the speaker buttons down at the same time and press the power button, it resets it, it fixed mine.

Even I have same problem

My DeNON AVR X1300W has the same problem. Denon sucks big time.

my is avr 1707

Guys! You must press the hard-power switch and the other buttoms together! NOT (!) the soft-Power-Buttom. OK?

wrong power button

Common fault seems to be ownership of one.

Me to same problem bro

Denon always be blinking problem, always.....

Reset ??? push long time the small power switch not LED 😉👌

@rajputsintukumar1739

3 жыл бұрын

Reset karne par ho gaya ga

@rajputsintukumar1739

3 жыл бұрын

please sir help me

only buy dennon 3000,4000,5000 series.....................2000,and 1000 are awful.....

I have the Denon AVR 1908 when the volume gets to around 13 or so it shuts off the entire unit. And not only that it does not seem to be as loud as it has been in the past also after it shuts off, the power light begins to flash red. In order to turn it back on I just have to push the power button twice and it will come back on.

@MohdSalim-fd2zg

4 жыл бұрын

Please check your speakers i thinks your speakers are shorts.

Even I have same problem